Reading profiles in adolescents with Fragile X Syndrome and down syndrome
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Fragile X Syndrome (FXS) and Down Syndrome (DS) read better than expected for their mental age. We have measured three basic reading skills (word recognition, phonological awareness, and reading compre-hension), and two standard intellectual and verbal measures: the McCarthy Scales of Children’s Abilities and Peabody Picture Vocabulary Tests. The tests were applied to 16 adolescents classified as FXS (M = 14.74 years old, SD = 4.03) and 16 adolescents classified as DS (M = 15.59 years old, SD = 2.35). For comparison purposes, the reading tests were also applied to a typical develop group of 70 children aged between 4.8 and 7.0 years (M = 6.11, SD = 0.71). Children with DS and FXS exhibited verbal skills superior to their cognitive development, especially in the FXS group. In reading performance, FXS showed a reading level corresponding to 5/6 their age, and for SD 6/7 of the equivalent reading age, however, both groups exhibited a similar reading performance in the three reading skills measured, when nonverbal mental age was controlled.